Reaction device for producing ethylene carbonate

Abstract

The invention relates to the technical field of chemical equipment, in particular to a reaction device for ethylene carbonate production, which comprises a reaction cavity for providing a space for reaction and a bearing seat I for providing a rotation space for a circumferential stirring component, and the bearing seat I is fixedly connected in the reaction cavity. The circumferential stirring component can stir reactants in the reaction cavity, the bottom of the reaction cavity is fixedly connected with a discharging vertical pipe with a valve, the bottom of the reaction cavity is fixedly connected with a bearing rotating cavity, and the bearing rotating cavity is fixedly connected with a temperature control component capable of controlling the temperature of the reaction cavity; supporting legs are fixedly connected to the reaction cavity, the circumferential stirring component comprises a vertical supporting shaft rotationally connected to the bearing seat I and a circumferential stirring plate fixedly connected to the bottom of the vertical supporting shaft, and a communicated feeding hole is formed in the upper portion of the vertical supporting shaft. The reaction device for producing ethylene carbonate has the beneficial effects that the reaction efficiency is high, the service life of the catalyst is long, and the energy consumption is low.

Description

Technical Field

[0001] The invention relates to the technical field of chemical equipment, and in particular to a reaction device for producing ethylene carbonate. Background Art

[0002] Ethylene carbonate is an important organic chemical raw material, widely used in lithium battery electrolyte, medicine, pesticide and other fields. At present, the production of ethylene carbonate mainly adopts the method of catalytic reaction of ethylene oxide and carbon dioxide. However, the existing reaction device has the following problems:

[0003] Low reaction efficiency: Traditional reaction devices mostly use kettle reactors, which cause uneven mixing of reactants and low mass and heat transfer efficiency, resulting in long reaction time and low conversion rate.

[0004] Catalysts are prone to deactivation: By-products generated during the reaction will cover the catalyst surface, causing catalyst deactivation and shortening the catalyst's service life.

[0005] High energy consumption: Heating and cooling are required during the reaction process. Traditional reaction devices have low heat utilization rate, resulting in high energy consumption.

[0006] To this end, we propose a reaction device for producing ethylene carbonate. Summary of the invention

[0007] A technical problem to be solved by the present application is to provide a reaction device for producing ethylene carbonate with high reaction efficiency, long catalyst service life and low energy consumption.

[0008] In order to solve the above-mentioned technical problems, an embodiment of the present application provides a reaction device for the production of ethylene carbonate, including a reaction cavity providing space for the reaction and a bearing seat I providing a rotation space for a circumferential stirring member, the bearing seat I is fixedly connected in the reaction cavity, the circumferential stirring member can stir the reactants in the reaction cavity, a discharge vertical pipe with a valve is fixedly connected to the bottom of the reaction cavity, a bearing rotating cavity is fixedly connected to the bottom of the reaction cavity, a temperature control member capable of controlling the temperature of the reaction cavity is rotatably connected to the bearing rotating cavity, and a support leg is fixedly connected to the reaction cavity.

[0009] In some embodiments, the circumferential stirring member includes a vertical support shaft rotatably connected to the bearing seat I and a circumferential stirring plate fixedly connected to the bottom of the vertical support shaft, and a connecting feeding hole is provided above the vertical support shaft.

[0010] In some embodiments, the reaction cavity is fixedly connected to a supporting baffle, a hollow rotating cavity is rotatably connected to the supporting baffle, a vertical supporting shaft passes through the hollow rotating cavity and is rotatably connected, a plurality of transverse supporting rotating shafts are rotatably connected to the hollow rotating cavity, and a plurality of cross stirring plates are fixedly connected to the plurality of transverse supporting rotating shafts.

[0011] In some embodiments, the outer ends of the plurality of cross stirring plates are fixedly connected to friction wheels, the interior of the reaction cavity is fixedly connected to a friction ring, and the plurality of friction wheels are in contact with the friction ring.

[0012] In some embodiments, a contact rotary plate is fixedly connected to the hollow rotary cavity, and a plurality of cross stirring plates in the same group are fixedly connected to a transverse push rotary plate.

[0013] In some embodiments, the supporting baffle is fixedly connected to a supporting frame, which is rotatably connected to the vertical supporting shaft, and the supporting frame is fixedly connected to a feeding cone port, which is connected to the feeding hole and rotatably connected, and a plurality of auxiliary material storage cavities with valves are fixedly connected to the feeding cone port.

[0014] In some embodiments, the support plate is fixedly connected to a reduction motor I, the vertical support shaft is fixedly connected to a bevel gear I, the hollow rotating cavity is fixedly connected to a bevel gear II, the output shaft of the reduction motor I is fixedly connected to a bevel gear III, and the bevel gear III is located between the bevel gear I and the bevel gear II and is meshingly connected.

[0015] In some embodiments, the temperature control component includes a double-grid cavity rotatably connected to the bearing rotating cavity and two horizontal adding tubes symmetrically fixedly connected on both sides of the double-grid cavity, and two hollow vertical tubes are symmetrically fixedly connected below the double-grid cavity.

[0016] In some embodiments, a gear ring is fixedly connected to the double-cell cavity, a reduction motor II is fixedly connected to the support leg, a meshing gear is fixedly connected to the output shaft of the reduction motor II, and the meshing gear is meshingly transmission connected to the gear ring.

[0017] In some embodiments, two pressure relief cross tubes are symmetrically fixedly connected above the reaction cavity, and pressure relief plugs are slidably connected inside the two pressure relief cross tubes. Extrusion support columns are fixedly connected to the outer ends of the two pressure relief plugs. Two right-angle slides are symmetrically fixedly connected above the cavity, and the two extrusion support columns are slidably connected to the two right-angle slides respectively. Both extrusion support columns are provided with springs, and the two springs are respectively located between the two pressure relief plugs and the two right-angle slides.

[0018] The present invention has at least the following beneficial effects:

[0019] 1. Stir the reactants to ensure that they are thoroughly mixed and react completely, thus avoiding waste of resources.

[0020] 2. Realize temperature control of reactants to ensure that the device is at the temperature required for the reaction, which can further shorten the reaction time and increase the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a schematic diagram of the overall structure of a reaction device for producing ethylene carbonate;

[0023] Figure 2 A schematic diagram of a partial structure of a reaction device for producing ethylene carbonate Figure 1 ;

[0024] Figure 3 A schematic diagram of a partial structure of a reaction device for producing ethylene carbonate Figure 2 ;

[0025] Figure 4 It is a schematic diagram of the structure of the cross section of the reaction cavity;

[0026] Figure 5 It is a structural schematic diagram of an embodiment for realizing temperature control of a reaction cavity;

[0027] Figure 6 It is a structural schematic diagram of an embodiment of depressurizing a reaction cavity;

[0028] Figure 7 It is a partial structural schematic diagram of an embodiment of pressure relief for a reaction cavity;

[0029] Figure 8 This is a schematic structural diagram of an embodiment of stirring a reaction cavity;

[0030] Fig. 9 It is a partial structural schematic diagram of an embodiment of stirring a reaction cavity;

[0031] Fig.10 It is a schematic diagram of the structure of an embodiment of providing storage space for reactants and catalysts.

[0032] In the figure: reaction cavity 101, bearing seat I102, discharge vertical pipe 103, bearing rotating cavity 104, support leg 105, vertical support shaft 201, circumferential stirring plate 202, feeding hole 203, supporting plugging plate 301, hollow rotating cavity 302, horizontal support rotating shaft 303, cross stirring plate 304, friction wheel 401, friction ring 402, horizontal push rotary plate 501, contact rotary plate 502, supporting frame 601, feeding cone 602, auxiliary material storage cavity 603, reduction motor I701, bevel gear I702, bevel gear II703, bevel gear III704, double-grid cavity 801, horizontal adding pipe 802, hollow vertical pipe 803, gear ring 804, reduction motor II805, meshing gear 806, pressure relief horizontal pipe 901, pressure relief plug 902, extrusion support column 903, right-angle slide plate 904. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-5 , 8 and 9, the present invention provides a technical solution: a reaction device for producing ethylene carbonate, comprising a reaction cavity 101 providing space for reaction and a bearing seat 1102 providing rotation space for a circumferential stirring member, the bearing seat 1102 being fixedly connected in the reaction cavity 101 by welding, the circumferential stirring member being capable of stirring the reactants in the reaction cavity 101, a discharge vertical pipe 103 with a valve being fixedly connected to the bottom of the reaction cavity 101 by welding, a bearing rotating cavity 104 being fixedly connected to the bottom of the reaction cavity 101 by welding, a temperature control member capable of controlling the temperature of the reaction cavity 101 being rotatably connected to the bearing rotating cavity 104 by a bearing, and a support leg 105 being fixedly connected to the reaction cavity 101 by welding.

[0035] The reaction cavity 101 can provide a reaction space for the reactants and the catalysts. The upper part of the reaction cavity 101 is designed as an open structure. The reactants and various catalysts are added into the reaction cavity 101 through the opening above the reaction cavity 101, and the production of ethylene carbonate is completed in the reaction cavity 101. The bearing seat 1102 can provide a rotating space for the circumferential stirring member. The circumferential stirring member can be used to stir the reactants and various catalysts in the reaction cavity 101, so that the reactants and various catalysts are evenly mixed to achieve a complete reaction. When the reaction cavity 101 is After the reactants and various catalysts are completely reacted and ethylene carbonate is produced, the valve on the discharge vertical pipe 103 is opened, and the produced ethylene carbonate will be discharged through the discharge vertical pipe 103, and the bearing rotation cavity 104 can provide a connection space for the temperature control component, and the temperature control component can rotate on the bearing rotation cavity 104. The temperature control component can be used to heat or cool the bottom of the reaction cavity 101 to ensure that the reaction cavity 101 is at a suitable temperature, further improving the reaction efficiency, and the support legs 105 play a supporting and fixing role, so that the reaction cavity 101 can be placed stably on the ground.

[0036] The reactants are added into the reaction cavity 101, and the circumferential stirring member is rotated to achieve stirring of the reactants in the reaction cavity 101. Then, a variety of catalysts are added into the reaction cavity 101 in sequence. When different reactions occur, the required reaction temperatures will also be different. At this time, the reaction cavity 101 can be temperature-controlled by the temperature control member. The temperature control member can increase or decrease the temperature of the reaction cavity 101, and the temperature control member can also rotate to achieve uniform increase or decrease in the temperature of the bottom of the reaction cavity 101, further improving the reaction efficiency. When the reaction in the reaction cavity 101 is completed and ethylene carbonate is produced, the valve on the discharge pipe 103 is opened, and the produced ethylene carbonate will be discharged through the discharge pipe 103, completing the production of ethylene carbonate.

[0037] Example 2: Please refer to Figure 1 , 8 9. The present invention provides a technical solution: the circumferential stirring member includes a vertical support shaft 201 rotatably connected to the bearing seat I102 through a bearing and a circumferential stirring plate 202 fixedly connected to the bottom of the vertical support shaft 201 by welding, and a connected feeding hole 203 is provided above the vertical support shaft 201.

[0038] The bearing seat 1102 can provide a rotating space for the vertical support shaft 201, and the vertical support shaft 201 can provide a fixed space for the circumferential stirring plate 202. When the vertical support shaft 201 rotates, the circumferential stirring plate 202 can be driven to rotate, so as to achieve stirring of the reactants and various catalysts in the reaction cavity 101. The bottom surface of the circumferential stirring plate 202 is provided with a plurality of notches, and the positions of the plurality of notches are inconsistent, so as to achieve a better stirring effect. The bottom surface of the circumferential stirring plate 202 contacts the bottom surface in the reaction cavity 101. When the circumferential stirring plate 202 rotates, it can not only stir the reactants and various catalysts, but also stir the reactants and various catalysts. The stirring treatment can also scrape the inner bottom surface of the reaction cavity 101 to ensure that the reactants or the produced ethylene carbonate will not stick to the inner bottom surface of the reaction cavity 101, which is convenient for cleaning the reaction cavity 101 later. The reactants and various catalysts are provided to the reaction cavity 101 through the feeding hole 203. When the reactants and various catalysts enter the reaction cavity 101 through the feeding hole 203, the falling speed of the reactants and various catalysts can be slowed down, avoiding the reactants and various catalysts from gathering and falling, and falling evenly and slowly, which can shorten the reaction time and further improve the efficiency of producing ethylene carbonate.

[0039] Example 3: Please refer to Figure 1 and 8-10, the present invention provides a technical solution: the reaction cavity 101 is fixedly connected to a supporting plugging plate 301 by a plurality of screws, the supporting plugging plate 301 is rotatably connected to a hollow rotating cavity 302 by a bearing, the vertical supporting shaft 201 passes through the hollow rotating cavity 302 and is rotatably connected, the hollow rotating cavity 302 is rotatably connected to a plurality of transverse supporting rotating shafts 303 by bearing holes, and a plurality of cross stirring plates 304 are fixedly connected to the plurality of transverse supporting rotating shafts 303 by welding.

[0040] The supporting plugging plate 301 can block the opening above the reaction cavity 101, and the supporting plugging plate 301 can provide a rotation space for the hollow rotating cavity 302, and a notch is arranged above the hollow rotating cavity 302, and the reactants and various catalysts falling through the feeding hole 203 will be discharged through the notch on the hollow rotating cavity 302, and the hollow rotating cavity 302 can also provide a rotation space for multiple horizontal support shafts 303, and the hollow rotating cavity 302 can provide a fixed space for the cross stirring plate 304, so that the hollow rotating cavity 302 and the vertical support shaft 201 can rotate in the opposite direction. When the hollow rotating cavity 302 rotates, it can drive the multiple horizontal support shafts 303 to rotate, and when the multiple horizontal support shafts 303 rotate, it can drive multiple groups of multiple cross stirring plates 304 to rotate. At this time, the multiple groups of multiple cross stirring plates 304 will rotate in the opposite direction to the circumferential stirring plates 202, and a greater stirring force will be generated in the reaction cavity 101, further shortening the reaction time and improving production efficiency.

[0041] Example 4: Please refer to Figure 1-4 , 8 and 9, the present invention provides a technical solution: the outer ends of the multiple cross stirring plates 304 are fixedly connected to the friction wheels 401 through keyways and retaining springs, the interior of the reaction cavity 101 is fixedly connected to the friction ring 402 by welding, and the multiple friction wheels 401 are in contact with the friction ring 402.

[0042] The multiple friction wheels 401 can be used to drive the multiple cross stirring plates 304 respectively, and the friction ring 402 can provide contact space for the multiple friction wheels 401. Because the friction ring 402 is in a fixed state, when the multiple friction wheels 401 are driven by the multiple cross supporting shafts 303 to rotate, they will contact the friction ring 402, and the multiple friction wheels 401 will rotate through the friction force. When the multiple friction wheels 401 rotate, the multiple cross supporting shafts 303 can be driven to rotate. At this time, the multiple cross supporting shafts 303 will undergo two kinds of rotations, one is the rotation around the axis of the hollow rotating cavity 302, and the other is the rotation around its own axis. The multiple cross supporting shafts 303 will drive the multiple groups of cross stirring plates 304 to rotate. At this time, the multiple groups of cross stirring plates 304 will also undergo two kinds of movements, further enhancing the stirring force generated by the multiple groups of cross stirring plates 304 and shortening the reaction time.

[0043] Example 5: Please refer to Figure 1 , 8 9. The present invention provides a technical solution: the contact rotary plate 502 is fixedly connected to the hollow rotary chamber 302 by welding, and the plurality of cross stirring plates 304 in the same group are fixedly connected to the transverse push rotary plate 501 by welding.

[0044] The contact rotary plate 502 is located below the feeding hole 203. When the reactants and various catalysts are added into the feeding hole 203, the reactants and various catalysts will fall onto the contact rotary plate 502, scattering the reactants and various catalysts to ensure that the reactants and various catalysts fall evenly into the reaction cavity 101, further shortening the mixing time of the reactants and various catalysts. When the multiple cross stirring plates 304 in the same group rotate, the horizontal push rotary plate 501 can be driven to rotate. When the horizontal push rotary plate 501 rotates, a horizontal thrust force will be generated, further increasing the stirring force on the reactants and various catalysts.

[0045] Example 6: Please refer to Figure 1 , 8 And 10, the present invention provides a technical solution: the supporting frame 601 is fixedly connected to the supporting blocking plate 301 by welding, the supporting frame 601 is rotatably connected to the vertical supporting shaft 201 by bearings, the supporting frame 601 is fixedly connected to a feeding cone port 602 by welding, the feeding cone port 602 is communicated with the feeding hole 203 and is connected by air rotation, and a plurality of auxiliary material storage cavities 603 with valves are fixedly connected to the feeding cone port 602 by welding and are connected.

[0046] The supporting frame 601 can provide a rotation space for the vertical support shaft 201, ensuring that the vertical support shaft 201 is limited both up and down, so that the vertical support shaft 201 can rotate smoothly, and the feeding cone 602 can provide a space for adding reactants and various catalysts. After the reactants and various catalysts are added into the feeding cone 602, they will directly enter the feeding hole 203, so that the addition of reactants and various catalysts can be achieved. The various catalysts can be placed in multiple auxiliary material storage cavities 603 respectively, and the multiple auxiliary material storage cavities 603 are provided with electromagnetic valves. After opening the electromagnetic valve, the catalyst in the auxiliary material storage cavity 603 can be added to the feeding cone 602, so that the correct catalyst can be added to the feeding cone at the right time. In the port 602, sealing covers are provided above the feeding cone port 602 and the multiple auxiliary material storage cavities 603. When the reactants and multiple catalysts react, the sealing covers on the feeding cone port 602 and the multiple auxiliary material storage cavities 603 are covered to achieve sealing treatment of the feeding cone port 602 and the multiple auxiliary material storage cavities 603 to prevent pressure from being discharged through the feeding cone port 602 and the multiple auxiliary material storage cavities 603. After the multiple auxiliary material storage cavities 603 are provided, storage space can be provided for multiple catalysts respectively to prevent multiple catalysts from being added to the reaction cavity 101 through the feeding cone port 602 at one time, because the by-products generated during the reaction will cover the catalyst surface, resulting in catalyst deactivation and shortening the service life of the catalyst.

[0047] Example 7: Please refer to Figure 1 and 8 -10. The present invention provides a technical solution: the support plate 301 is fixedly connected with a reduction motor I701 through a flange plate, the vertical support shaft 201 is fixedly connected with a bevel gear I702 through a keyway and a retaining spring, the hollow rotating cavity 302 is fixedly connected with a bevel gear II703 through a keyway and a retaining spring, the output shaft of the reduction motor I701 is fixedly connected with a bevel gear III704 through a keyway and a retaining spring, and the bevel gear III704 is located between the bevel gear I702 and the bevel gear II703 and is meshed and connected for transmission.

[0048] After starting the reduction motor I701, the bevel gear III704 can be driven to rotate. When the bevel gear III704 rotates, it can drive the bevel gear I702 and the bevel gear II703. Because the bevel gear III704 is located between the bevel gear I702 and the bevel gear II703, the bevel gear III704 will drive the bevel gear I702 and the bevel gear II703 to rotate in the opposite direction, and the bevel gear I702 and the bevel gear II703 will respectively drive the vertical support shaft 201 and the hollow rotating chamber 302 to rotate. At this time, the vertical support shaft 201 and the hollow rotating chamber 302 will also rotate in the opposite direction, thereby generating a greater stirring force.

[0049] Example 8: Please refer to Figure 1-5The present invention provides a technical solution: the temperature control component includes a double-cell cavity 801 connected to the bearing rotation cavity 104 through a bearing rotation and two horizontal addition pipes 802 symmetrically fixedly connected to both sides of the double-cell cavity 801 through welding and connected, and two hollow vertical pipes 803 symmetrically fixedly connected to the bottom of the double-cell cavity 801 through welding and connected.

[0050] The double-grid cavity 801 is designed as a hollow structure, and a partition is also arranged inside it. The partition is used to isolate the double-grid cavity 801 into two cavities, one is the heating cavity, and the other is the cooling cavity. The two horizontal addition tubes 802 and the two hollow vertical tubes 803 are divided into two groups. Each group of horizontal addition tubes 802 and hollow vertical tubes 803 are connected to the water storage cavity through two pipes. When the reaction in the reaction cavity 101 requires high temperature, hot water is added to the heating cavity of the double-grid cavity 801, and the double-grid cavity 801 is rotated to achieve heating treatment of the reaction cavity 101 and keep the reaction cavity 101 in a high temperature state. After the reaction is completed, the hollow vertical tube 803 is used to discharge the hot water and return it to the original water storage cavity. Repeating the above steps can add cold water to the cooling cavity of the double-grid cavity 801 to achieve low-temperature treatment of the reaction cavity 101.

[0051] Example 9: Please refer to Figure 1-3 And 5, the present invention provides a technical solution: the double-grid cavity 801 is fixedly connected with a gear ring 804 by welding, the support leg 105 is fixedly connected with a reduction motor II805 by a flange plate, the output shaft of the reduction motor II805 is fixedly connected with a meshing gear 806 by means of a vehicle inspection retaining spring, and the meshing gear 806 is meshingly transmission connected with the gear ring 804.

[0052] The gear ring 804 can be used to drive the double-grid cavity 801 to rotate, and the reduction motor II 805 can be started to drive the meshing gear 806 to rotate. When the meshing gear 806 rotates, the gear ring 804 can be driven to rotate, and finally the double-grid cavity 801 can be driven to rotate. In this way, the double-grid cavity 801 will rotate, thereby achieving uniform heating and cooling treatment on the bottom of the reaction cavity 101, ensuring that the reaction cavity 101 is at a suitable temperature for reaction, thereby accelerating the reaction.

[0053] Example 10: Please refer to Figure 1 , 2, 6 and 7, the present invention provides a technical solution: two pressure relief cross pipes 901 are symmetrically connected and connected by welding above the reaction cavity 101, and pressure relief plugs 902 are connected to the two pressure relief cross pipes 901 through straight cavity sliding connection, and the outer ends of the two pressure relief plugs 902 are fixedly connected by welding with extrusion support columns 903, and two right-angle slides 904 are symmetrically connected and fixed by welding above the cavity 101, and the two extrusion support columns 903 are respectively connected to the two right-angle slides 904 through sliding mouth sliding connection, and the two extrusion support columns 903 are both provided with springs, and the two springs are respectively located between the two pressure relief plugs 902 and the two right-angle slides 904.

[0054] A plurality of circular holes are arranged on the pressure relief cross pipe 901, and the pressure relief plugs 902 can be used to seal the plurality of circular holes on the pressure relief cross pipe 901. The pressure relief plugs 902 are provided with pressure relief holes, and the pressure relief cross pipe 901 can seal the pressure relief holes on the pressure relief plugs 902. The extrusion support column 903 can provide a fixed space for the pressure relief plugs 902, and the right-angle slide 904 can provide a sliding space for the extrusion support column 903. Springs are sleeved on the two extrusion support columns 903, and the two springs are respectively located between the two pressure relief plugs 902 and the two right-angle slides 904. The elastic force generated by the two springs can act on the two pressure relief plugs 902, so that the two pressure relief plugs 902 are slidably connected to the two pressure relief cross pipes 901. When the pressure in the reaction cavity 101 is too large, it will act on the two pressure relief plugs 902. At this time, the two pressure relief plugs Plug 902 will move outward, and multiple circular holes on the two pressure relief transverse pipes 901 will be exposed, and the pressure in the reaction cavity 101 will be discharged. At this time, an alarm will be sounded, and people will know that the pressure in the reaction cavity 101 is too high. If no one takes timely action, the two pressure relief plugs 902 will continue to move outward, and the pressure relief holes on the two pressure relief plugs 902 will be exposed, thereby achieving double pressure relief, and finally achieving rapid discharge of the pressure in the reaction cavity 101, further ensuring people's safety, and preventing accidents caused by excessive pressure in the reaction cavity 101. When the pressure in the reaction cavity 101 is restored, the elastic force generated by the two springs can act on the two pressure relief plugs 902, so that the two pressure relief plugs 902 can be re-slid and connected to the two pressure relief transverse pipes 901, thereby achieving secondary plugging of the reaction cavity 101.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A reaction device for producing ethylene carbonate, characterized in that: The invention comprises a reaction cavity (101) providing a space for reaction and a bearing seat I (102) providing a rotation space for a circumferential stirring member, wherein the bearing seat I (102) is fixedly connected in the reaction cavity (101), the circumferential stirring member can stir the reactants in the reaction cavity (101), a discharge vertical pipe (103) with a valve is fixedly connected to the bottom of the reaction cavity (101), a bearing rotating cavity (104) is fixedly connected to the bottom of the reaction cavity (101), a temperature control member capable of controlling the temperature of the reaction cavity (101) is fixedly connected to the bearing rotating cavity (104), and a support leg (105) is fixedly connected to the reaction cavity (101).

2. A reaction device for producing ethylene carbonate according to claim 1, characterized in that: The circumferential stirring member comprises a vertical support shaft (201) rotatably connected to the bearing seat I (102) and a circumferential stirring plate (202) fixedly connected to the bottom of the vertical support shaft (201), and a connected feeding hole (203) is arranged above the vertical support shaft (201).

3. A reaction device for producing ethylene carbonate according to claim 2, characterized in that: The reaction cavity (101) is fixedly connected to a supporting plugging plate (301), a hollow rotating cavity (302) is rotatably connected to the supporting plugging plate (301), a vertical supporting shaft (201) passes through the hollow rotating cavity (302) and is rotatably connected thereto, a plurality of transverse supporting rotating shafts (303) are rotatably connected to the hollow rotating cavity (302), and a plurality of cross stirring plates (304) are fixedly connected to the plurality of transverse supporting rotating shafts (303).

4. A reaction device for producing ethylene carbonate according to claim 3, characterized in that: The outer ends of the plurality of cross stirring plates (304) are all fixedly connected to friction wheels (401), the interior of the reaction cavity (101) is fixedly connected to a friction ring (402), and the plurality of friction wheels (401) are all in contact with the friction ring (402).

5. A reaction device for producing ethylene carbonate according to claim 4, characterized in that: The hollow rotating chamber (302) is fixedly connected with a contact rotating plate (502), and the plurality of cross stirring plates (304) in the same group are all fixedly connected with a transverse pushing rotating plate (501).

6. A reaction device for producing ethylene carbonate according to claim 3, characterized in that: The supporting blocking plate (301) is fixedly connected to a supporting frame (601), the supporting frame (601) is rotatably connected to the vertical supporting shaft (201), the supporting frame (601) is fixedly connected to a feeding cone (602), the feeding cone (602) is connected to the feeding hole (203) and is rotatably connected, and a plurality of auxiliary material storage chambers (603) with valves are fixedly connected to the feeding cone (602).

7. A reaction device for producing ethylene carbonate according to claim 6, characterized in that: The support plate (301) is fixedly connected to a reduction motor (701), the vertical support shaft (201) is fixedly connected to a bevel gear I (702), the hollow rotating cavity (302) is fixedly connected to a bevel gear II (703), the output shaft of the reduction motor (701) is fixedly connected to a bevel gear III (704), and the bevel gear III (704) is located between the bevel gear I (702) and the bevel gear II (703) and is meshed and transmission-connected.

8. A reaction device for producing ethylene carbonate according to claim 1, characterized in that: The temperature control component comprises a double-cell cavity (801) rotatably connected to the bearing rotating cavity (104) and two horizontal addition pipes (802) symmetrically fixedly connected to both sides of the double-cell cavity (801); two hollow vertical pipes (803) are symmetrically fixedly connected below the double-cell cavity (801).

9. A reaction device for producing ethylene carbonate according to claim 8, characterized in that: The double-cell cavity (801) is fixedly connected with a gear ring (804), the support leg (105) is fixedly connected with a reduction motor II (805), the output shaft of the reduction motor II (805) is fixedly connected with a meshing gear (806), and the meshing gear (806) is meshingly connected with the gear ring (804).

10. The reaction device for producing ethylene carbonate according to claim 1, characterized in that: Two pressure relief transverse tubes (901) are symmetrically fixedly connected above the reaction cavity (101), and pressure relief plugs (902) are slidably connected inside the two pressure relief transverse tubes (901). Extrusion support columns (903) are fixedly connected to the outer ends of the two pressure relief plugs (902). Two right-angle slides (904) are symmetrically fixedly connected above the reaction cavity (101), and the two extrusion support columns (903) are respectively slidably connected to the two right-angle slides (904). The two extrusion support columns (903) are both sleeved with springs, and the two springs are respectively located between the two pressure relief plugs (902) and the two right-angle slides (904).

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